/*
** Copyright (C) 2011 Michael Zhang <zhangfuxi@gmail.com>
**  
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation; either version 2 of the License, or
** (at your option) any later version.
** 
** This program is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
** 
** You should have received a copy of the GNU General Public License
** along with this program; if not, write to the Free Software 
** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/

/* ifd_util.c -- routine file for IFD library utils.
 * 
 * ifd_util.c, v0.1 2011-09-14 Michael.Zhang
 *
 * history:
 * v0.1 2011-09-14 Michael.Zhang
 *        * Creation
 * 
 */
#include "ifd_util.h"

unsigned char util_char_hex_to_bin(char c)
{
  if (c>='0' && c<='9') return (c-'0');
  if (c>='A' && c<='F') return (c-'A'); 
  if (c>='a' && c<='f') return (c-'a');

  return 0xFF;
}
